P0129 Code - Barometric Pressure Out Of Range Low
Quick Answer
The P0129 diagnostic trouble code indicates that the barometric pressure is out of range low. Common causes include Faulty barometric pressure sensor, Vacuum leaks in the intake system, Malfunctioning ECM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0129 indicates Barometric Pressure Out Of Range Low.
- Common causes
- Common causes include Faulty barometric pressure sensor, Vacuum leaks in the intake system, Malfunctioning ECM.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0129 Description
The P0129 diagnostic trouble code indicates that the barometric pressure is out of range low. Barometric pressure is a crucial parameter for the engine control module (ECM) to determine the correct air-fuel mixture for optimal engine performance. When the barometric pressure is too low, it can affect the engine's efficiency and overall performance. This issue can lead to poor fuel economy, reduced power output, and increased emissions. If left unaddressed, it could potentially cause damage to other engine components and lead to more serious issues in the long run.
Common Causes of P0129
- Faulty barometric pressure sensor
- Vacuum leaks in the intake system
- Malfunctioning ECM
- Clogged air filter
- Wiring or electrical issues
Symptoms of P0129
- Reduced engine power
- Poor fuel economy
- Rough idling or stalling
- Illuminated check engine light
- Difficulty starting the engine
How to Fix P0129
- Diagnose the issue by using a scan tool to check for the P0129 code and inspecting the barometric pressure sensor.
- Test the barometric pressure sensor for proper operation and replace it if necessary.
- Check for vacuum leaks in the intake system and repair any leaks found.
- Inspect and replace the air filter if it is dirty or clogged.
- Clear the trouble code from the ECM and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P0129
The cost of repairing a P0129 code can vary depending on the specific cause of the issue. In general, the cost of replacing a barometric pressure sensor can range from $50 to $200, while diagnosing and repairing vacuum leaks or wiring issues can add to the total cost. Labor rates at auto repair shops typically range from $80 to $150 per hour, so the total cost of repairing a P0129 code can vary based on the complexity of the repair and the shop's labor rates. It is advisable to consult with a qualified mechanic to get an accurate estimate for the repair.
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Code P0129 Information for Specific Makes
- P0129 BMW — Barometric Pressure Too Low
- P0129 Chrysler — Barometric Pressure Out Of Range Low
- P0129 Dodge — Barometric Pressure Out Of Range Low
- P0129 Jeep — Barometric Pressure Out Of Range Low
- P0129 MINI — Barometric Pressure Too Low
- P0129 Mitsubishi — Barometric Pressure Out Of Range Low
Frequently Asked Questions about P0129 Code
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